t/ccnoco4.sh

   1 #! /bin/sh
   2 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
   3 #
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2, or (at your option)
   7 # any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  16
  17 # Check that Automake-generated C compilation rules don't mistakenly
  18 # use the "-c -o" options combination unconditionally (even with losing
  19 # compilers) when the 'subdir-objects' is used but sources are only
  20 # present in the top-level directory.  Reported by Nick Bowler in the
  21 # discussion on automake bug#13378:
  22 # <https://debbugs.gnu.org/cgi/bugreport.cgi?bug=13378#35>
  23 # <https://debbugs.gnu.org/cgi/bugreport.cgi?bug=13378#44>
  24
  25 required=gcc # For cc-no-c-o.
  26 . test-init.sh
  27
  28 cat >> configure.ac << 'END'
  29 AC_PROG_CC
  30 $CC --version; $CC -v; # For debugging.
  31 AC_OUTPUT
  32 END
  33
  34 cat > Makefile.am << 'END'
  35 AUTOMAKE_OPTIONS = subdir-objects
  36 bin_PROGRAMS = foo bar
  37 bar_SOURCES = foo.c
  38 END
  39
  40 echo 'int main (void) { return 0; }' > foo.c
  41
  42 # Make sure the compiler doesn't understand '-c -o'
  43 CC=$am_testaux_builddir/cc-no-c-o; export CC
  44
  45 $ACLOCAL
  46 $AUTOCONF
  47 $AUTOMAKE --copy --add-missing
  48
  49 ./configure
  50 $MAKE
  51 $MAKE distcheck
  52
  53 :